Underframe for cars.



J. SA ANDREWS .l 111.19331117351111 ron GAM. ArPLIdA'TIoI Hmm JAN 24, '190e 2 sums-SHEET 1.

UNITED' STATES PATENT onirica.

JAMES s. AAunluiws, or NEWT YORK', N'. Y.

UNDiEnFRAME Fon cans.

v Specification of Letters Patent.

Application filed January 24, 1903.' Serial No. 412,973.

Patented Dec. 1, 1908.

provide a metal underfram/e of strong and.

substantial construction and composed of standard sections consisting of steel castings securely and rigidly fastened together. 4

The invention also has for its objectl to provide simple means for ,drawing the sections of the underframe together and securing them vrigidly to-each other.

As this invention has relation more particularly to the manner and means-.for securing the castings'forming theunderframe together it will be understood of course thatl the invention can be embodied in underframes of various constructions and therefore l do not limit myself to the adaptation of theinvention with lthe particular construction of underframe illustrated inthe accompanying drawings, in which Figure 1 is a plan vlew of Yan underfraine embodying the invention. Fig. 2 is a detail 'enlarged planvview, partly in section, show ing the jolnt in `one of the -side sills. Fig. 3 is a similar view ,showing the joint in the center sill. Fig. l4 is a longitudinal vertical sectional view on the line 4 4 of Fig. '1. Fig. is a. side view, partly in section,of a modified form of joint. view, partly in section, of the joint show-n in Fig.'5.

Referring to the drawings the side sills consisthof two end sections 7 and a central section 8, these sections bein all preferably made of cast steel in channe form and vrigidly secured together at their adjacent ends as `hereafter described and as shown in the joint of the center sill in Fig. 4. At each end of the frame is a draw-bar sill 9 which is provided with an openind 10 to receive the "draw-bar and its attaclhments. Each draw-bar sill is'made of cast steel and'is provided with side projections llwhich constitute the body bolster and which are bolted or otherwise securely fastened to the sections 7 of t-he side sills. Each draw-bar sill is also provided with -int egral side projections 1Q make a .close joint.

Fig. 6 is a plan which constitute the' 'end sills and are/bolted or otherwise securely fastenedto the sections 7 ofthe side sills.. The draw-bar sills have integral projections 13 which constitute parts of the center sill and abut against die cast steelv intermediate section 14 of the `center sill 'which is preferably made in Ieforin.

- Lugs 15 are provided on the'top and bot- @tom -of the projections 13 and at theout j 'minds thereof and lugs 16 are providedon At e tbp and bottom 'of the centersill section 14` at the ends thereof to abut aga-inst the lugs 15,011 the projections 13. (Figs. 3,4.) Tie plates 17 `are arranged to lie upon said lugs 15, 16, and are provided'with lugs 18 at the ends thereof and ata distance removed from the lugs 15, l'to provide a space between themselves and the lugs 15', 16 to receive the wedge blocks 19.' When the parts are assembled these wedge blocks are driven. in between the lugs 18 and the lugs 15, 16 and thereby the center sill section'14 and the projections 13 are drawn up close together to The rie plates 17 have elongated openings 20 to receive the bolts 21 which pass through openings in the flan es 13, 13 lof the castings to secure the tie p atestothe castings and fasten the parts rigidly together. The elongated openings in the tie plates allow for variations which may occur in the closeness of fit between the parts of the joint.

I also prefer to provide the end of the project-ion 13`with a recessed head 22 to receive the projecting head 23cm. the adjacent end of the center sill section 14 and secure these heads together by bolts 24 as shown in Fig. 4. This construction may be reversed. and

the center sill 14 provided with a recessed The joints at the ends of the side sill sec- .I

tions 8 and the adjacent ends of the side sill sections 7 are made like the joint between the ends of the center sill section 14 and thc projections 13 as clearly shown in elevation in Fig. 4 and it willnot be necessary to enter into a 'detail description thereof except to say that the Wedges 26 are driven in between the lags 27 on lthe underside of the tie plates 28 andthe lugs 29 on the sill in the manner heretofore described.

tiigs. 5 and 6 l have illustrated another l forni of joint embodying the Wedges but in this construction the Wedges are arranged inv an upright position instead of in ahorizontal position as in the construction illustrateiil-in Figs. l-et. Figs.

` a joint which is especially adapted for a side t. thev are p to'receive the Wedge blocks 36.-

r in the lower ange of the sections 30, 31 tt/vill, by engagement with the lugs 34, the sections close together, as shown in so that they can be rigidly secured by s Avts 37 'passin through elongated openings i'n the tie p ate and openings in the sec- 'tien heretofore mentioned the sections of thenndertraine' may .be made in any vdesired :to and number, so far as my present inion is concerned, and it will be observed that the invention provides for securingthe sections together in a firm and rigid manner Whether or not they are made to an exact tit. invention also 'facilitates the operation assembling the parts lof the uiiderfraine and the oints permit the removal of any section t'or repair or replacement Without dis-l asseiiiloling the entire frame.

'l/Vhat l claim and desire to secure by Letters Patentis:

it.. in a sectional underraine for ears, the combination of two sections arranged end to end, a tie plate overlapping the adjacent of said sections, and Wedge blocks ene gagging saidtie plate and said sections to raw the sections together. 4 .2. ln a sectional underframe for cars, the combination of. t-Wo sections arranged end sections of the side 5 and 6 illustrate ange of the sections 30, Stand into l the upper'ange and into thevopens; soaavi i to end, a tie plate overlapping the adjacent ends ot' said sections, lugs on said tie plate, and Wedge blocks engaging said lugs and said sections to draw the sections together.

3. In a sectional undertrame for cars, the combination of two sections arranged end to end, a tie plate overlappingthc adjacent ends of said sections, lugs on said sections, and Wedge blocks engaging said iie plate and 'said lugs to draw the sections together.

l. In a sectional under-frame for cars, the combination of two sections arranged ond to'end, a. tie plate o.'erlapping the adjacent endso said sections, lugs on said lic plate, lugs on said section-s, and Wedge blocks engaging said lugs to 'draw the-sections together.

5. ln a sectional underfrainc for cars, the

'combination of two sections arranged end tol end, said sections having a depression at the top and lat the adjacent ends thereof, a tie plate overlapping the ends of the sections and resting on the top thereof in said de pression, and Wedge blocks engaging said tie plate and said sections to draw the scc tions together.

v6. In a sectional nndertraine for cars, the combination of two` sections arranged ond to end, a tic plate overlapping the adjacent ends of said sections, Wedge blocks engaging said tie plate and said sections to .draw the sections together, and bolts passing through the tie plate and the sections to secure theparts together, said tie plate having enlarged openingsto receive the bolts.

7, An underfranie for cars coinprisinga plurality of sections made to tit together, tie.plates overlapping the ends of said sections, Wedge blocks engaging said tie plates land said sections to draw the sections together and make tight joints therebetween, and means for securing the tieyplates to the sections. j

8. An underfranie for cars comprising a plurality of sections made to yfit together, said sections having lugs thereon at their adjacent ends, tie plates overlapping the ends of said sections, ,lugs onv said tie plates, and Wedge 'blocks to engage the lugs on' the sect-ionsand the lugs on the tie plate at cach joint of the frame to draw the,l sections together and make the frame rigid.

JAMES S. A NDREWS. Witnesses:

. CHAs. S. ANDREWS,

A. L. BARRETT. 

